The IA-3154-2 is an intelligent 24 Relays Board, RS-232 Controlled with Daisy-Chain compatibility, fitting all chain positions. The IA-3154-2 includes 24 DPDT Relays, also defined as Dual Change-Over, with 6 contacts per Relay, with a contact rating of up to 2Amp at 30VDC or 0.5Amp at 115VAC. The IA-3154-2 Relays Module includes a rich software commands list. It includes simple 1, 2 and 8 Relays control commands, thousands of Relays Global control commands and special "Break-before-Make" Multiplex, single and dual Relays Commands. Each IA-3154-2 Relay Board may be operated as a single board or as a part of a chain of boards, transparent and simply operated by the user.